Re: FW: pIII Serial (or lack there-of)

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 14 Oct 1999 15:03:58 +0100 (BST)

> > it is even possible to provide this without having an PIII)...
>
> Again possible, but would probably impact userspace apps.
> The paranoia over whether your app reads a real serial number
> or a pretend one, would probably put off some people from
> using it.

Intel went to great pains to ensure that the PIII serial number isnt
alterable. On intel CPUs you cant trap the serial number query. What does
work though is to get an IDT winchip, load the configurable CPUID data
with the intel string and then catch the illegal instruction

Alan

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